SENTINEL® Expansion Joints
For waterproofing and movement joint schemes
Used in conjunction with innovative waterproof membranes, the SENTINEL® range provides a comprehensive, cost-effective solution for combined waterproofing and movement joint schemes. All Sentinel systems provide a long life expansion joint solution, and utilise innovative fast curing materials to minimise bridge closure time.
SENTINEL® B
Buried joint for use under continuous asphalt surfacing
Incorporating a proprietary PVC flashing strip the expansion joint is designed for horizontal movements in the range of 0 – 20mm. SENTINEL® B is bonded across the expansion gap and is compatible with the ELIMINATOR® waterproofing system to form a continuous waterproofing detail below the asphalt surfacing. Sentinel B joints are SA1 registered in the UK as a BD33/94 Type 1 bridge expansion joint.
SENTINEL® EMR
Surface mounted mechanical bridge expansion joint
SENTINEL® EMR ist an Elastomeric seal in metal rails type joint, designed for high wear situations on new and refurbishment projects. It is available with a range of load bearing seals to accommodate varied movement and gap widths, up to 150mm of horizontal movement. Sentinel EMR joints are SA1 registered in the UK as a BD33/94 Type 6 bridge expansion joint.
SENTINEL® NJ
Nosing Joint designed for small movements
The SENTINEL® NJ is an ideal match for high load and high wear situations such as highway bridges, footbridges, car parks and building applications. The joint is surface mounted, comprising a central preformed load bearing compression seal, bonded between high strength elastomeric nosings. Sentinel NJ joints are SA1 registered in the UK as a BD33/94 Type 4 bridge expansion joint.
Reinforced Elastomeric bridge expansion joint system
For horizontal movements
Sentinel also provides a reinforced elastomeric bridge expansion joint system for horizontal movements of up to 350mm with SA1 registration in the UK as a BD33/94 Type 5 bridge expansion joint and highly resilient expansion joints that can accommodate a wide range of movements (up to 350mm) including complex movements where there are components of horizontal, vertical and lateral movement are available upon request.
Associated Projects
Utilising an eight-week closure Metrail employed a joint planer, Eliminator waterproofing, fast-setting R2 and R4 materials, and two different types of joints to replace waterproofing and the interchange’s 20 bridge joints.
With the three road bridges of the Rochester Bridge in need of major refurbishment, Metrail carried out concrete repairs on all three bridges as well as expansion joint replacement and bridge deck waterproofing on the Old Bridge and the New Bridge.
